Copaíba-Clara (Brazil); Wallaba; Wapa; Espadeira (Brazil); Eperu (Brazil); Bainha De Espada (Brazil); Gebaru; Wallaba; Walaba; Uapa Tabaco; Palo Machete; Jebaro; Itusi Wallaba; Epeau; Bijlhout; Apazeiro (Brazil); Apa (Brazil); Wouapa; Woapa; Wapa Huileux; Wapa Patouve; Wapa Gras; Wapa; Soft Wallaba
The trees are reported to reach heights of 30 m, with trunk diameters ranging from 45 to 70 cm. They develop well-formed and cylindrical boles that are 15 to 20 m long.
Eperua trees are gregarious and dominant. They prefer acidic sandy soils in creek valleys and high savanna forests.
The geographical range for this genus is the Guyanas and the northern Brazilian Amazon basin.
resin canals in line, with important exudations
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 150 to 200 micras (medium). Vessels per mm2 6 to 10 (medium). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Int Paratracheal axial parenchyma thin vasicentric. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 to 4 cells per parenchyma strand. Axial parenchyma bands more than 3 cells wide. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Heterogeneous rays and/or multiseriate heterogeneous rays. Fibers with simple to minutely bordered pits.
The color of the heartwood is commonly red brown, with darker resinous markings.
The grain is frequently straight.
Texture is described as medium.
It is very durable against decay. This species is very resistant against termites and it is not attacked by Lyctus.
Growth stresses present in the tree may cause the log to burst on the butt.
This timber is reported to respond poorly to preservative treatment.
Resin present in wood may clog the saw-teeth
The wood has a moderate blunting effect.
Planing operations are not difficult if dry wood is processed (limited resin exudation ).
Good nail-holding, but pre-boring is necessary.
This species is easy to glue.
Polishing can give satisfactory results after suitable sanding and filling.
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